Is A Green Mobility Scooter Really Green? Transport is the second-largest contributor of greenhouse gas emissions. Are electric scooters that dock on shared streets really green? Scooter startups like Tier, Dott, Voi and Circ all say they are. We asked them about their sustainability plan. Here's what they said. Dott's https://www.mymobilityscooters.uk/brands/green-power